"præ-emption" meaning in English

{
  "forms": [
    {
      "form": "præ-emptions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "præ-emption (countable and uncountable, plural præ-emptions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "pre-emption"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1703, Joseph Gander, The Glory of Her Sacred Majesty Queen Anne, page 104",
          "text": "By the Benefit of which Præ-emption alone, (nevertheleſs ’tis hoped) that about Twenty thouſand pound Sterling per Year or more, may be eaſily raiſed as a Fund or Stock […]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Obsolete spelling of pre-emption"
      ],
      "id": "en-præ-emption-en-noun-XeOKTUzz",
      "links": [
        [
          "pre-emption",
          "pre-emption#English"
        ]
      ],
      "tags": [
        "alt-of",
        "countable",
        "obsolete",
        "uncountable"
      ]
    }
  ],
  "word": "præ-emption"
}

{
  "forms": [
    {
      "form": "præ-emptions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "præ-emption (countable and uncountable, plural præ-emptions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "pre-emption"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English obsolete forms",
        "English terms spelled with Æ",
        "English terms with quotations",
        "English uncountable nouns"
      ],
      "examples": [
        {
          "ref": "1703, Joseph Gander, The Glory of Her Sacred Majesty Queen Anne, page 104",
          "text": "By the Benefit of which Præ-emption alone, (nevertheleſs ’tis hoped) that about Twenty thouſand pound Sterling per Year or more, may be eaſily raiſed as a Fund or Stock […]",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Obsolete spelling of pre-emption"
      ],
      "links": [
        [
          "pre-emption",
          "pre-emption#English"
        ]
      ],
      "tags": [
        "alt-of",
        "countable",
        "obsolete",
        "uncountable"
      ]
    }
  ],
  "word": "præ-emption"
}